Will-O-Wisp (Basic Lore)

Will-O-Wisp (CR 5)
Chaotic Evil - Small - Aberration
Faintly glowing lights in the middle of a dark, deadly forest.... It does not seem like simple glowing lights in the distance should be so frightening, but unless you have been lost in the woods, so very alone, and been bedeviled by a pack of Will-O-Wisp's, you have no idea the sheer terror will-o-wisp's evoke in their victims. Will-O-Wisp's are terrible things, incorporeal fiends whose existence involves the torment and murder of innocents. They lurk in the wilds, attempting to lure the unwary to their death. If a group of adventurers happens upon a pack of Will-O-Wisps, the encounter is rarely a conclusive one, unless the adventurers were specifically hunting the Wisps and are prepared for their odd and strange powers.